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公开(公告)号：US20160290260A1
公开(公告)日：2016-10-06
申请号：US14674696
申请日：2015-03-31
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chad E. Marlett , James L. Meyer , Jianwen Li , Marco Girotto
CPC classification number: F02D41/024 , F01N3/2006 , F01N3/2066 , F01N3/208 , F01N9/00 , F01N11/002 , F01N2560/20 , F01N2900/1404 , F02D41/062 , F02D41/064 , F02D41/1494 , F02D41/222 , Y02T10/24 , Y02T10/26 , Y02T10/47
Abstract: A direct fuel injection internal combustion engine fluidly coupled to an exhaust aftertreatment system is described and includes a plurality of fluidly coupled exhaust purifying devices and an exhaust gas sensor. A method of controlling the engine includes, activating, via a heater controller, a heating element of the exhaust gas sensor in response to starting the internal combustion engine. An exhaust gas feedstream is monitored to determine a temperature of the exhaust gas sensor. Engine control to effect heating of one of the exhaust purifying devices is permitted only when a temperature of the exhaust gas sensor is greater than a threshold temperature.
Abstract translation: 流体耦合到排气后处理系统的直接燃料喷射内燃机被描述并且包括多个流体耦合的排气净化装置和废气传感器。 控制发动机的方法包括响应于起动内燃机，经由加热器控制器激活排气传感器的加热元件。 监测废气进料流以确定废气传感器的温度。 仅当废气传感器的温度大于阈值温度时才允许用于实现一个排气净化装置的加热的发动机控制。
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公开(公告)号：US09897025B2
公开(公告)日：2018-02-20
申请号：US14674696
申请日：2015-03-31
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chad E. Marlett , James L. Meyer , Jianwen Li , Marco Girotto
CPC classification number: F02D41/024 , F01N3/2006 , F01N3/2066 , F01N3/208 , F01N9/00 , F01N11/002 , F01N2560/20 , F01N2900/1404 , F02D41/062 , F02D41/064 , F02D41/1494 , F02D41/222 , Y02T10/24 , Y02T10/26 , Y02T10/47
Abstract: A direct fuel injection internal combustion engine fluidly coupled to an exhaust aftertreatment system is described and includes a plurality of fluidly coupled exhaust purifying devices and an exhaust gas sensor. A method of controlling the engine includes, activating, via a heater controller, a heating element of the exhaust gas sensor in response to starting the internal combustion engine. An exhaust gas feedstream is monitored to determine a temperature of the exhaust gas sensor. Engine control to effect heating of one of the exhaust purifying devices is permitted only when a temperature of the exhaust gas sensor is greater than a threshold temperature.
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公开(公告)号：US09644566B2
公开(公告)日：2017-05-09
申请号：US14494332
申请日：2014-09-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Marco Girotto , Valerio Nuzzo , Angelo Cancellieri
CPC classification number: F02D41/40 , F02D41/123 , F02D41/1497 , F02D41/221 , F02D41/2416 , F02D41/247 , F02D2041/224 , F02D2200/1002 , F02D2250/31 , Y02T10/44
Abstract: A control apparatus for operating a fuel injector is provided. The control apparatus includes an electronic control unit configured to: identify when the engine is running under a fuel cut-off condition, and then perform a learning procedure to determine an actual value of energizing time that causes the fuel injector to inject a target fuel quantity. The learning procedure provides for the electronic control unit to perform several test injections with different energizing time values and measure an engine torque value caused by the test injection. The measured engine torque values and their correspondent energizing time values are used to extrapolate the actual value of the energizing time as the value that corresponds to a reference value of engine torque that is consistent with the target fuel quantity.
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公开(公告)号：US20150088402A1
公开(公告)日：2015-03-26
申请号：US14494332
申请日：2014-09-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Marco Girotto , Valerio Nuzzo , Angelo Cancellieri
CPC classification number: F02D41/40 , F02D41/123 , F02D41/1497 , F02D41/221 , F02D41/2416 , F02D41/247 , F02D2041/224 , F02D2200/1002 , F02D2250/31 , Y02T10/44
Abstract: A control apparatus for operating a fuel injector is provided. The control apparatus includes an electronic control unit configured to: identify when the engine is running under a fuel cut-off condition, and then perform a learning procedure to determine an actual value of energizing time that causes the fuel injector to inject a target fuel quantity. The learning procedure provides for the electronic control unit to perform several test injections with different energizing time values and measure an engine torque value caused by the test injection. The measured engine torque values and their correspondent energizing time values are used to extrapolate the actual value of the energizing time as the value that corresponds to a reference value of engine torque that is consistent with the target fuel quantity.
Abstract translation: 提供一种用于操作燃料喷射器的控制装置。 控制装置包括：电子控制单元，被配置为：在燃料切断状态下识别发动机何时运行，然后执行学习过程，以确定使燃料喷射器注入目标燃料量的激励时间的实际值 。 学习过程为电子控制单元提供不同激励时间值的多次测试注入，并测量由测试注入引起的发动机转矩值。 所测量的发动机扭矩值及其相应的通电时间值用于将通电时间的实际值推断为与目标燃料量一致的发动机扭矩的参考值相对应的值。
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